Hitachi DZ-GX20A Service Manual page 115

Adjustment > Setups for Adjustment
(2) Setting and disassembly of DVD video camera/recorder
1) Open the LCD monitor and insert a fine-tipped flat-bladed screwdriver into the groove in
adjustment cover, and remove the cover from L case in the direction of the arrow: Be very careful
not to scratch the cover or L case with screwdriver.
2) Set the light box 30-50 cm away from DVD video camera/recorder, and eliminate any effects from
surrounding light, except where such designation is given.
3) Set the lens surface of DVD video camera/recorder in parallel with the surface of light box as far
as possible, and adjust the focus.
4) Use a small tripod to fix the DVD video camera/recorder, making certain it does not move during
creation of reference data.
5) Be sure to connect the video output of DVD video camera/recorder to the video input jack of color
monitor, which is usually terminated by 75 ohm: If the video output is not terminated by 75 ohm,
the video output value cannot be measured correctly.
Note:
Always connect the Halcyon connector before connecting the DC power cord to the DVD video
camera/recorder: Connecting the Halcyon connector after powering the DVD video camera/recorder
could cause a fault.
Adjustment
cover
Flat-bladed
screwdriver
Halcyon
connector
Frequency Counter
(No. TP14391)
GND
(Pin 26)
LCD-HDD
(Pin 11)
SD
RD
(Pin 29)
(Pin 28)
Light box
RESET
button
30-50cm
Tripod
DC power
supply
(5V/1A)
Red
Black
Black
Yellow
DSP-R Jig
(No. 7099448)
White
Fig. 6-2-4 Connections for Adjustment
Color Monitor
To VIDEO IN
Front
section
AV/S input/output
cable
DC power cord
To AC outlet
Power cable
DZ-ACS2
PC
RS-232C
cable
6 - 14
Oscilloscope
Nothing vector
scope
CH1 CH2
Yellow
Vector scope
To OUTPUT
Yellow
To INPUT